Flex can be configured with either a BOV, DSV, or a special sidemount DSV. All mouthpieces use custom 90 degree bayonet hose adapters. Shrimp BOV with 90 degree adapters DSV with 90 degree bayonets Sidemount DSV The 90 degree bayonet hose connectors ensure streamlined hose routing whether the unit is worn on the left or right side. BOV or DSV with 90 degree bayonet connectors Sidemount DSV configured for Flex on the right Flex configured with the Sidemount DSV - hoses routed to the right Next - Gas Management